Can't get current user name

$modx->user->hasSessionContext('mgr')

return var_dump($modx->getUser()->get('username'));

string(11) "(anonymous)"

array(2) { ["joomla"]=> string(2564) "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" ["modx.user.contextTokens"]=> array(0) { } }

array(6) { ["modx.user.contextTokens"]=> array(1) { ["mgr"]=> int(1) } ["modx.user.0.resourceGroups"]=> array(1) { ["web"]=> array(0) { } } ["modx.user.0.attributes"]=> array(1) { ["web"]=> array(5) { ["modAccessContext"]=> array(2) { ["en"]=> array(1) { [0]=> array(3) { ["principal"]=> int(0) ["authority"]=> string(1) "0" ["policy"]=> array(1) { ["load"]=> bool(true) } } } ["web"]=> array(1) { [0]=> array(3) { ["principal"]=> int(0) ["authority"]=> string(1) "0" ["policy"]=> array(1) { ["load"]=> bool(true) } } } } ["modAccessResourceGroup"]=> array(0) { } ["modAccessCategory"]=> array(0) { } ["sources.modAccessMediaSource"]=> array(0) { } ["modAccessNamespace"]=> array(0) { } } } ["modx.mgr.user.token"]=> string(52) "modxXXXXXaff52c861.3820XXXX_1596XXXXX2e4f92.41XXXX97" ["modx.mgr.session.cookie.lifetime"]=> int(604800) ["modx.mgr.user.config"]=> array(0) { } }

$modx->user->get('username'); // will return the actual username

$modx->context->get('key'); // will return 'web' (or other front-end context)

$modx->user->hasSessionContext($modx->context->get('key')); // will report login status (true or false)